Science

Sunday, 16 August 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

Did you know?

Large Magellanic Cloud
One of the largest globular clusters in the galaxy is NGC 1783.
Silver
Silver has been used in photographic technology.
It is used there to obtain silver halides (primarily silver bromide) used as photosensitive substances.
Liver
Liver produces bile.
It allows to digest fats and proteins. It is also essential to regulating blood glucose.
Brain
The smallest brain mammal is the Etruscan shrew. The biggest one - the sperm whale.
The Etruscan shrew is also the smallest of the currently known mammals.
Titan
Rains of liquid organic compounds, mainly methane, fall to the surface of the moon from clouds consisting of methane and ethane.
Typically, cloud cover does not exceed 1% of the moon's surface, but periodically it can increase up ...
Graphene
Nowadays, scientists are interested in a single layer of graphite carbon atoms.
In graphite, each carbon atom is connected to three other atoms and all these bonds lie in one plane ...
Earth
The Earth has the only natural satellite - the Moon.
The moon is relatively large for a natural satellite. Its diameter is approximately ¼ the diameter of the Earth. It orbits the Earth at an average distance of 384.400 km.
Enceladus
Enceladus' atmosphere consists of water vapor (91%), nitrogen (4%), carbon dioxide (3.2%) and methane (1.7%).
Nicotine
The name nicotine comes from the name of the French physician Jean Nicot, who recommended tobacco as a medicine in the 16th century.
Nicotine was first isolated in 1828, and its chemical structure was discovered in 1843. Nicotine was first obtained through a chemical process in 1904.
Aurora
In Finnish, the aurora is referred to as "revontulet, " which means "fox fire".
The name comes from the legend of an arctic fox that ran north, spreading its tail sparks of fire shining in the moonlight.